Presentation 2004/2/26
Adaptive Algorithm based on Accumulated Signal Processing for Fast Fading Channel
Pubudu S. WIJESENA, Tetsuki TANIGUCHI, Yoshio KARASAWA,
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Abstract(in English) In this paper, we propose an adaptive algorithm based on accumulated signal processing, which could be applicable to Post-FFT type OFDM adaptive array antenna. Proposed scheme calculates the weight of each element at a particular instantt , by considering both post and pre-received symbols. Since this technique uses additional future information on channel behavior in the weight calculating scheme comparing to the conventional MMSE adaptive algorithms, one can expect performance improvement with the application of the proposed algorithm in fast fading conditions. This paper also discusses the application of proposed adaptive algorithm to OFDM adaptive array. When applying to OFDM adaptive array, first, we allocate few subchannels to transmit pilot symbols. At the receiver, we perform the proposed adaptive algorithm to those pilot subchannels, and interpolate the weights for the data symbols which are allocated between the pilot subchannels. This paper also contains simulation results to confirm the system performance improvement with the application of the proposed algorithm.
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Keyword(in English) MMSE adaptive array / Adaptive algorithm / Accumulated signal processing / OFDM
Paper # WBS2003-129,A・P2003-322,RCS2003-345,MoMuC2003-135,MW2003-291
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Committee MoMuC
Conference Date 2004/2/26(1days)
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Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Adaptive Algorithm based on Accumulated Signal Processing for Fast Fading Channel
Sub Title (in English)
Keyword(1) MMSE adaptive array
Keyword(2) Adaptive algorithm
Keyword(3) Accumulated signal processing
Keyword(4) OFDM
1st Author's Name Pubudu S. WIJESENA
1st Author's Affiliation Department of Electronic Engineering, The University of Electro-Communications()
2nd Author's Name Tetsuki TANIGUCHI
2nd Author's Affiliation Department of Electronic Engineering, The University of Electro-Communications
3rd Author's Name Yoshio KARASAWA
3rd Author's Affiliation Department of Electronic Engineering, The University of Electro-Communications
Date 2004/2/26
Paper # WBS2003-129,A・P2003-322,RCS2003-345,MoMuC2003-135,MW2003-291
Volume (vol) vol.103
Number (no) 684
Page pp.pp.-
#Pages 5
Date of Issue